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274 lines
15 KiB
274 lines
15 KiB
/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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#include "common.h"
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#include "types.h"
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#include "modules.h"
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#include "bitops.h"
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#include "convert.h"
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#include "shared.h"
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static const u32 ATTACK_EXEC = ATTACK_EXEC_INSIDE_KERNEL;
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static const u32 DGST_POS0 = 0;
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static const u32 DGST_POS1 = 1;
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static const u32 DGST_POS2 = 2;
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static const u32 DGST_POS3 = 3;
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static const u32 DGST_SIZE = DGST_SIZE_4_4;
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static const u32 HASH_CATEGORY = HASH_CATEGORY_PRIVATE_KEY;
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static const char *HASH_NAME = "RSA/DSA/EC/OpenSSH Private Keys ($5$)";
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static const u64 KERN_TYPE = 22951;
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static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE;
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static const u64 OPTS_TYPE = OPTS_TYPE_PT_GENERATE_LE
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| OPTS_TYPE_SUGGEST_KG
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| OPTS_TYPE_MAXIMUM_THREADS;
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static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
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static const char *ST_PASS = "hashcat";
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static const char *ST_HASH = "$sshng$5$16$52935050547964524511665675049973$1232$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";
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u32 module_attack_exec (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ATTACK_EXEC; }
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u32 module_dgst_pos0 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS0; }
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u32 module_dgst_pos1 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS1; }
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u32 module_dgst_pos2 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS2; }
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u32 module_dgst_pos3 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS3; }
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u32 module_dgst_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_SIZE; }
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u32 module_hash_category (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return HASH_CATEGORY; }
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const char *module_hash_name (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return HASH_NAME; }
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u64 module_kern_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return KERN_TYPE; }
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u32 module_opti_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return OPTI_TYPE; }
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u64 module_opts_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return OPTS_TYPE; }
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u32 module_salt_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return SALT_TYPE; }
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const char *module_st_hash (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ST_HASH; }
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const char *module_st_pass (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ST_PASS; }
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typedef struct pem
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{
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u32 data_buf[16384];
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int data_len;
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int cipher;
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} pem_t;
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static const char *SIGNATURE_SSHNG = "$sshng$";
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u64 module_esalt_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
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{
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const u64 esalt_size = (const u64) sizeof (pem_t);
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return esalt_size;
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}
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int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED void *digest_buf, MAYBE_UNUSED salt_t *salt, MAYBE_UNUSED void *esalt_buf, MAYBE_UNUSED void *hook_salt_buf, MAYBE_UNUSED hashinfo_t *hash_info, const char *line_buf, MAYBE_UNUSED const int line_len)
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{
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u32 *digest = (u32 *) digest_buf;
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pem_t *pem = (pem_t *) esalt_buf;
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token_t token;
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token.token_cnt = 6;
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token.signatures_cnt = 1;
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token.signatures_buf[0] = SIGNATURE_SSHNG;
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token.len[0] = 7;
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token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_SIGNATURE;
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token.sep[1] = '$';
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token.len_min[1] = 1;
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token.len_max[1] = 1;
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token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
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token.sep[2] = '$';
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token.len_min[2] = 2;
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token.len_max[2] = 2;
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token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
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token.sep[3] = '$';
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token.len_min[3] = 32;
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token.len_max[3] = 32;
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token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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token.sep[4] = '$';
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token.len_min[4] = 1;
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token.len_max[4] = 8;
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token.attr[4] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
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token.sep[5] = '$';
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token.len_min[5] = 64; // 64 = minimum size (32 byte) to avoid out of boundary read in kernel
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token.len_max[5] = 65536; // 65536 = maximum asn.1 size fitting into 2 byte length integer
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token.attr[5] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token);
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if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
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// cipher
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const u8 *cipher_pos = token.buf[1];
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int cipher = hc_strtoul ((const char *) cipher_pos, NULL, 10);
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if (cipher != 5) return (PARSER_CIPHER);
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pem->cipher = cipher;
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// IV length
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const u8 *iv_len_verify_pos = token.buf[2];
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const int iv_len_verify = hc_strtoul ((const char *) iv_len_verify_pos, NULL, 10);
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if (iv_len_verify != 16) return (PARSER_SALT_LENGTH);
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// IV buffer
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const u8 *iv_pos = token.buf[3];
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const int iv_len = token.len[3];
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if (iv_len != 32) return (PARSER_SALT_LENGTH);
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salt->salt_buf[0] = hex_to_u32 (iv_pos + 0);
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salt->salt_buf[1] = hex_to_u32 (iv_pos + 8);
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salt->salt_buf[2] = hex_to_u32 (iv_pos + 16);
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salt->salt_buf[3] = hex_to_u32 (iv_pos + 24);
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salt->salt_len = 16;
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// data length
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const u8 *data_len_verify_pos = token.buf[4];
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const int data_len_verify = hc_strtoul ((const char *) data_len_verify_pos, NULL, 10);
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// data
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const u8 *data_pos = token.buf[5];
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const int data_len = token.len[5];
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pem->data_len = hex_decode (data_pos, data_len, (u8 *) pem->data_buf);
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if (data_len_verify != pem->data_len) return (PARSER_HASH_LENGTH);
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// data has to be a multiple of cipher block size
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if (pem->data_len % 16) return (PARSER_HASH_LENGTH);
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// hash
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digest[0] = pem->data_buf[0];
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digest[1] = pem->data_buf[1];
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digest[2] = pem->data_buf[2];
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digest[3] = pem->data_buf[3];
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return (PARSER_OK);
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}
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int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const void *digest_buf, MAYBE_UNUSED const salt_t *salt, MAYBE_UNUSED const void *esalt_buf, MAYBE_UNUSED const void *hook_salt_buf, MAYBE_UNUSED const hashinfo_t *hash_info, char *line_buf, MAYBE_UNUSED const int line_size)
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{
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pem_t *pem = (pem_t *) esalt_buf;
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u8 *out_buf = (u8 *) line_buf;
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int out_len = 0;
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out_len = snprintf ((char *) out_buf, line_size, "%s%d$16$%08x%08x%08x%08x$%d$",
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SIGNATURE_SSHNG,
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pem->cipher,
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byte_swap_32 (salt->salt_buf[0]),
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byte_swap_32 (salt->salt_buf[1]),
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byte_swap_32 (salt->salt_buf[2]),
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byte_swap_32 (salt->salt_buf[3]),
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pem->data_len);
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out_len += hex_encode ((const u8 *) pem->data_buf, pem->data_len, (u8 *) out_buf + out_len);
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return out_len;
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}
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void module_init (module_ctx_t *module_ctx)
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{
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module_ctx->module_context_size = MODULE_CONTEXT_SIZE_CURRENT;
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module_ctx->module_interface_version = MODULE_INTERFACE_VERSION_CURRENT;
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module_ctx->module_attack_exec = module_attack_exec;
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module_ctx->module_benchmark_esalt = MODULE_DEFAULT;
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module_ctx->module_benchmark_hook_salt = MODULE_DEFAULT;
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module_ctx->module_benchmark_mask = MODULE_DEFAULT;
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module_ctx->module_benchmark_salt = MODULE_DEFAULT;
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module_ctx->module_build_plain_postprocess = MODULE_DEFAULT;
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module_ctx->module_deep_comp_kernel = MODULE_DEFAULT;
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module_ctx->module_deprecated_notice = MODULE_DEFAULT;
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module_ctx->module_dgst_pos0 = module_dgst_pos0;
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module_ctx->module_dgst_pos1 = module_dgst_pos1;
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module_ctx->module_dgst_pos2 = module_dgst_pos2;
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module_ctx->module_dgst_pos3 = module_dgst_pos3;
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module_ctx->module_dgst_size = module_dgst_size;
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module_ctx->module_dictstat_disable = MODULE_DEFAULT;
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module_ctx->module_esalt_size = module_esalt_size;
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module_ctx->module_extra_buffer_size = MODULE_DEFAULT;
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module_ctx->module_extra_tmp_size = MODULE_DEFAULT;
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module_ctx->module_extra_tuningdb_block = MODULE_DEFAULT;
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module_ctx->module_forced_outfile_format = MODULE_DEFAULT;
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module_ctx->module_hash_binary_count = MODULE_DEFAULT;
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module_ctx->module_hash_binary_parse = MODULE_DEFAULT;
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module_ctx->module_hash_binary_save = MODULE_DEFAULT;
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module_ctx->module_hash_decode_potfile = MODULE_DEFAULT;
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module_ctx->module_hash_decode_zero_hash = MODULE_DEFAULT;
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module_ctx->module_hash_decode = module_hash_decode;
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module_ctx->module_hash_encode_status = MODULE_DEFAULT;
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module_ctx->module_hash_encode_potfile = MODULE_DEFAULT;
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module_ctx->module_hash_encode = module_hash_encode;
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module_ctx->module_hash_init_selftest = MODULE_DEFAULT;
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module_ctx->module_hash_mode = MODULE_DEFAULT;
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module_ctx->module_hash_category = module_hash_category;
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module_ctx->module_hash_name = module_hash_name;
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module_ctx->module_hashes_count_min = MODULE_DEFAULT;
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module_ctx->module_hashes_count_max = MODULE_DEFAULT;
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module_ctx->module_hlfmt_disable = MODULE_DEFAULT;
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module_ctx->module_hook_extra_param_size = MODULE_DEFAULT;
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module_ctx->module_hook_extra_param_init = MODULE_DEFAULT;
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module_ctx->module_hook_extra_param_term = MODULE_DEFAULT;
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module_ctx->module_hook12 = MODULE_DEFAULT;
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module_ctx->module_hook23 = MODULE_DEFAULT;
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module_ctx->module_hook_salt_size = MODULE_DEFAULT;
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module_ctx->module_hook_size = MODULE_DEFAULT;
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module_ctx->module_jit_build_options = MODULE_DEFAULT;
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module_ctx->module_jit_cache_disable = MODULE_DEFAULT;
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module_ctx->module_kernel_accel_max = MODULE_DEFAULT;
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module_ctx->module_kernel_accel_min = MODULE_DEFAULT;
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module_ctx->module_kernel_loops_max = MODULE_DEFAULT;
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module_ctx->module_kernel_loops_min = MODULE_DEFAULT;
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module_ctx->module_kernel_threads_max = MODULE_DEFAULT;
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module_ctx->module_kernel_threads_min = MODULE_DEFAULT;
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module_ctx->module_kern_type = module_kern_type;
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module_ctx->module_kern_type_dynamic = MODULE_DEFAULT;
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module_ctx->module_opti_type = module_opti_type;
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module_ctx->module_opts_type = module_opts_type;
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module_ctx->module_outfile_check_disable = MODULE_DEFAULT;
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module_ctx->module_outfile_check_nocomp = MODULE_DEFAULT;
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module_ctx->module_potfile_custom_check = MODULE_DEFAULT;
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module_ctx->module_potfile_disable = MODULE_DEFAULT;
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module_ctx->module_potfile_keep_all_hashes = MODULE_DEFAULT;
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module_ctx->module_pwdump_column = MODULE_DEFAULT;
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module_ctx->module_pw_max = MODULE_DEFAULT;
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module_ctx->module_pw_min = MODULE_DEFAULT;
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module_ctx->module_salt_max = MODULE_DEFAULT;
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module_ctx->module_salt_min = MODULE_DEFAULT;
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module_ctx->module_salt_type = module_salt_type;
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module_ctx->module_separator = MODULE_DEFAULT;
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module_ctx->module_st_hash = module_st_hash;
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module_ctx->module_st_pass = module_st_pass;
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module_ctx->module_tmp_size = MODULE_DEFAULT;
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module_ctx->module_unstable_warning = MODULE_DEFAULT;
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module_ctx->module_warmup_disable = MODULE_DEFAULT;
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}
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